Following the addition of Amy Macdonald to the festival’s 2018 line-up, the early bird ticket deadline has been extended.

The family-friendly festival’s offer was due to finish today (January 31, 2018) but promoters have decided to allow fans to buy tickets at the discounted price until midnight on Sunday, February 4.

Amy shot to fame 10 years ago with This is the Life and four albums and a massive touring career later is perhaps the biggest young female Scottish artist in the world.

FBTO 2018 in Hatfield Park will be one of her few festival gigs this summer.

Her finely honed acoustic set will showcase songs from Under Stars, released in 2017, Life in a Beautiful Light (2012), A Curious Thing (2010) and, of course, This is the Life, the album that launched a career selling millions of records.

A festival spokesperson said: “It’s confirmed – Amy Macdonald will close the Folk by the Oak 2018 main stage.

“In light of this announcement coming so close to the end of our early booking deadline, we feel it only fair to extend it.

“You now have until midnight Sunday, February 4 to book you tickets at the best possible price.”

Festival organisers said: “We caught Amy on her 2017 sell-out tour, and were so blown away we were delighted to secure her for one of her few UK festival gigs this year.

“Amy is a dedicated live performer and probably the most successful young Scottish singer-songwriter on the festival circuit today.

“She has earned a reputation for lively, effervescent performances, easily hitting the level of energy we aim to bring to the Folk by the Oak Main Stage for our festival finale.”

As well as her acclaimed material, Amy has been known to cover songs by Bruce Springsteen (Born to Run and Dancing in the Dark) and The Killers (Mr Brightside and When You Were Young).

Adult tickets for Folk by the Oak currently cost £33.50.

After the early-bird period ends, the price will rise to £37.

Tickets will cost £45 on the day of the festival, subject to availability.